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October 1, 2000Journal of Cardiovascular Electrophysiology

Radiofrequency Ablation of Idiopathic Left Ventricular Tachycardia at the Site of Earliest Activation as Determined by Noncontact Mapping

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Why the study?

Does radiofrequency ablation guided by noncontact mapping improve termination and prevent recurrence in patients with idiopathic left ventricular tachycardia?

Population

5 patients with idiopathic left ventricular tachycardia (ILVT)

Design

Case_series

Follow-up

9.6 +/- 4.7 months

Authors

TBTimothy R. BettsElectrophysiologyPRPaul R. RobertsNational Health ServiceSASTUART A. AELENSouthampton General Hospital

Discussion

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Implication

Noncontact mapping may aid ablation of idiopathic LV tachycardia; leaves open efficacy versus conventional mapping in larger trials.

Structured PICO

Does radiofrequency ablation guided by noncontact mapping improve termination and prevent recurrence in patients with idiopathic left ventricular tachycardia?

P
Population
5 patients with idiopathic left ventricular tachycardia (ILVT)
I
Intervention
Radiofrequency (RF) ablation guided by noncontact mapping (multielectrode array positioned in the left ventricular apex via retrograde approach) to target the site of earliest endocardial activation
O
Outcome
Successful termination of tachycardia and recurrence during follow-up

Noncontact mapping is an effective and safe method for guiding radiofrequency ablation of idiopathic left ventricular tachycardia by identifying the precise site of earliest activation.

Cite This Study

Betts et al. (2000) studied this question.

synapsesocial.com/papers/6a736ae27cd2f95261c1e5eehttps://doi.org/10.1111/j.1540-8167.2000.tb01754.x

Topics

Ventricular arrhythmiasAF ablation outcomes
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Feasibility of a Noncontact Catheter for Endocardial Mapping of Human Ventricular Tachycardia1999 · 189 citations
  2. 2Validation of a New Noncontact Catheter System for Electroanatomic Mapping of Left Ventricular Endocardium1999 · 155 citations
  3. 3Identification of the Slow Conduction Zone in Idiopathic Left Ventricular Tachycardia2000 · 11 citations
  4. 4Significance of Late Diastolic Potential Preceding Purkinje Potential in Verapamil-Sensitive Idiopathic Left Ventricular Tachycardia1999 · 140 citations
  5. 5Demonstration of Purkinje Potential During Idiopathic Left Ventricular Tachycardia: A Marker for Ablation Site by Transient Entrainment1997 · 12 citations